Hoshizaki KML-451MAH Service Manual page 46

1. On water-cooled model only, first remove the water from the water-cooled
condenser:
1) Turn off the power supply.
2) Remove the front panel.
3) Move the control switch on the control box to the "OFF" position.
4) Wait 3 minutes.
5) Move the control switch to the "ICE" position.
6) Replace the front panel and turn on the power supply.
7) Allow 5 minutes for the icemaker to fill with water and the water pump to start operating.
8) Close the water-cooled condenser water supply line shut-off valve.
9) Open the drain valve for the water-cooled condenser water supply line.
10) Allow the line to drain by gravity.
11) Attach compressed air or carbon dioxide supply to the condenser water line drain valve.
12) Blow the water-cooled condenser out, using compressed air or carbon dioxide until
water stops coming out.
2. Remove the water from the potable water supply line:
1) Turn off the power supply and remove the front panel.
2) Move the control switch on the control box to the "OFF" position.
3) Wait 3 minutes.
4) Close the potable water supply line shut-off valve and open the potable water supply
line drain valve.
5) Allow the line to drain by gravity.
6) Attach compressed air or carbon dioxide supply to the potable water line drain valve.
7) Move the control switch to the "ICE" position.
8) Replace the front panel and turn on the power supply.
9) Blow the potable water line out using compressed air or carbon dioxide.
3. Drain the Potable Water Tank:
1) Turn off the power supply.
2) Remove the front panel.
3) Move the control switch to "SERVICE" and move the service switch to the "DRAIN"
position
4) Replace the front panel and turn on the power supply for 2 minutes.
5) Turn off the power supply.
6) Close water supply line drain valve(s).
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